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<blockquote class="extDef">NOTE&nbsp; Definition according to ISO/CD 10303-42:1992<br>
A connected_face_set is a set of faces such that the domain of faces together with their bounding edges and vertices is connected. </blockquote> 

<blockquote class="note">NOTE&nbsp; Entity adapted from <strong>connected_face_set</strong> defined in ISO 10303-42.</blockquote>		
<blockquote class="history">HISTORY&nbsp; New entity in IFC1.0</blockquote> 

<p class="spec-head">Informal Propositions:</p> 
<ol> 
<li>The union of the domains of the faces and their bounding loops shall be arcwise connected.</li> 
</ol>